Suction cleaner



`July 1, 1930 N. H. LosEY 1,769,523

sUcTIoN -CLEANER Filed Oct. 18l 1926 2 Shasta-Sheet 2 INVENTOR. /Vo/vrf/ /v asa-y.

BY #43W A TTORN E Y.

Paten-tod July `1, 1930 noma n. LosnY, or montano sUc'rIoN-'CLEANER application meaoetober 1s, me. seria; No. 142,257.

v Thisk invention relates tofs'uction cleaners. 1 The general purpose of the invention is to provide in a 'suction cleaneran improved sweeper element for effectively loosening dirt from a iloor covering.

Particularly the invention has for its object the provisionin the suction opening-of asuctioncleaner, an elemente ainst which a floor covering is adapted to the vsuc'tionfand operable to limpart V a shaking -wave motion to the floor covering to assist in loosening dii-'t therefrom.

A specific object of the invention is to provide in the suction nozzle of this type of cleaner a rotary element extending longitudinally with relation to the nozzle opening and having mounted for oscillatory movement prefu erably by eccentric mountings at its opposite ends, the eccentricity yof each being herein shown substantially opposite to that of the other.

A further object of the invention is to provide on a similarly mounted element a sweeper freel rotatable thereon.

Another object of the invention is to provide a sweeper adapted to be mounted as set forth above, the brush to be tapered to a lesser diameter adjacent its ends so as to prevent too strenuous action thereof where the amplitude v of eccentric movement is greatest.

The foregoing and other objects are obtained by the suction cleaners illustrated in the accompan ing drawings and described below. It is to e understood that the invention is not limited to the particular forms thereof shown and described.

Of the accompanying drawings, Figure 1 is a bottom plan of a suction cleaner embodying the invention;

1Figure 2 is a section on line 2-2 of Figure Figure 3 is a detail diametral section through a modified form of rotary brush or beater;

Figure 4 is a sectional lan of another suction cleaner embodying t e invention; and

Fi 5 is a section ou line 5--5 thereof.

Re erring to Figures 1 and 2 of the drawings, the numeral 10 designates the nozzle of a motor-operated suction sweeper. J our drawn by naled in the nozzle so as to operate inthe inlet 11 thereof is a combined brushf' and'l beater .12 which .may be drivenin any i'sitable manner, for example, by the central drive shown, including a beltl trained .over a central pulley 14 on brush 12. Belt13 ma be driven from a. shaft y15 by a pulley 16, s aft 15 Vbeing driven by the rotor of the -suction fan (not shown). y

Th brush 12 is mounted with yits axis at 60 suchy an angle that its opposite ends are substantially eccentric in Opposite directions with respect to the rotary axis of the brush defined by sleeves 17, 17 onvwhich the brush 12 is mounted, the sleeves 17 being secured on 05' ball bearings 18, 18 on a horizontal shaft 19 'journaled in the nozzle piece 10. The ends of brush 12 are tapered as shown so as to avoid too strenuous action of these ends on the floor covering.

In Figure the brush 12a is arranged to be freely rotatable on its inclined eccentric mounting 12bsoas to have a gentler beating action, the brush tending to slip on its mounting as it strikes the floor covering. 1

With reference to Figure 4, it is to be noted that the advantages of the invention ma be secured with the end drive type of brus or beater., In this form, a brush 20, similar to f brushes 12 and 12, is mounted on end pieces 21 8 and 22 having a common horizontal axis of rotation on nozzle piece 10* provided with oppositely eccentric threaded portions 21l and 22 threaded ,into the ends of the brush and provided with concentric pulleys v21b and'22" aving-trained-thereover abelt 24 driven by pulleys-.16% similar to pulley 16- and trained overpulleys'indicated atf25, 26,127. and v28'. In the `=use offany form of the invention, eachbrush, 12, 12* or 20, is 'driven at acomparatively rapid rate, the vfloor covering -being l drawnv *upwardly vby. .the suction kagainst the. brush which, due v,to .its inclined mount`v ingi .onf oppostely directed 1 eccentrica has a transvxs'" brushing, 'shakingcand' -beat-` 95 ti back':fandrxforth=-1oni-,theewloor The 1L f :movement of fthe-. tA fbrushr to loosen thl "dirt, the wave motion extending 10 downward movement of the rug positive while the upward movement of the rug is not. Because of the speed of rotation of the brush and the non-positive upward movement of the rug, the rug in its upward movement .does

' not touch the-brush, but lags behind. As soon however, as the eccentricity of the brush mounting again begins to move the brush down, the brush and the lagging rug come together to give a distinct beat to the rug; hence in addition to the brushing andl shaking actions the brush also acts as a beater. f

Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

What is claimed is: 1. A suction cleaner includingr a nozzle having a suction inlet, a rotatable element journaled in the inlet, the geometrical, longitudinal axis of said element beingv inclined to the axis of its rotation, the ends of the element being mounted substantially oppositely eccentric tosaid axis of rotation, and means for rotating said element.

2. A suction cleaner including a nozzle having a suction inlet, means comprising a rotatable element journaled in the inlet, the Y geometrical, longitudinal axis of the element being inclined to its axis of rotation so as to be movable in the inlet and against which a inl lnngitudn i i M thegnozzlnpice; said "lemen metrica-l,ilungitudina `otationffarid havingarng cleaning, means iii concentniczwith its nation, a nozzle piece having a suction inlet, journal means in the nozzle definin a horizontal axis of rotation in the nozz e above the inlet, an element rotatable on said journal means about said axis, the geometrical, longitudinal axis of the element bein inclined to the axis of rotation, a brushing member mounted so as Ito be freely rotatable` on said element, andmeans for lrotating said element.

6. A suction cleaner including, in combination, a nozzle piece having a suction inlet, journal means in the nozzle defining a horizontal axis of rotation above the inlet, an' element rotatable on said journal means about said axis, the geometrical, longitudinal axis of the element beinginclined to the axis of rotat-ion and intersecting the Vlatter substantially above the centerof the, inlet, and means for rotating said element. vfll 7. A suctionl cleaner comprisingv a suction nozzle having an inlet, an axle member, and a brush mounted on said axle member -and filling said inlet, said brush being eccentrically mounted with respect to said axle inember whereby upon rotation it will, betrans- ,versely oscillated in theinlet.

'NORTH H, LosEY'.

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